Hagakure (#5)
Firearms and Christianity brought new problems to Shogun Ieyasu which he solved by separation and division. When he died the Shogunate fell to his son and then eight years later to his grandson, the tyrannical Iemitsu. Forbidden to earn money and to spend months at court, languishing in boredom, most of the once-proud Samurai became poets, gamblers, fashionistas, gourmets, actors, gossipers, and womanizing drunks. Some, including Tsunetomo, who composed the Hagakure.